package com.qfedu.dao;

import com.qfedu.proxy.GenderDAO;

//public class BookDAOImpl implements GenderDAO {
    public class BookDAOImpl {
    public int insert(){
        System.out.println("----inert----book");
//        throw new NullPointerException();
        return 5;
    }

    public void detele(){
        System.out.println("---detele----book");
    }

    public void update(){
        System.out.println("---update----book");
    }
}
